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# -*- coding: utf-8 -*-
"""Test suite for the deepreload module."""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.
import types
from pathlib import Path
import pytest
from tempfile import TemporaryDirectory
from IPython.lib.deepreload import modules_reloading
from IPython.lib.deepreload import reload as dreload
from IPython.utils.syspathcontext import prepended_to_syspath
def test_deepreload():
"Test that dreload does deep reloads and skips excluded modules."
with TemporaryDirectory() as tmpdir:
with prepended_to_syspath(tmpdir):
tmpdirpath = Path(tmpdir)
with open(tmpdirpath / "A.py", "w", encoding="utf-8") as f:
f.write("class Object:\n pass\nok = True\n")
with open(tmpdirpath / "B.py", "w", encoding="utf-8") as f:
f.write("import A\nassert A.ok, 'we are fine'\n")
import A
import B
# Test that A is not reloaded.
obj = A.Object()
dreload(B, exclude=["A"])
assert isinstance(obj, A.Object) is True
# Test that an import failure will not blow-up us.
A.ok = False
with pytest.raises(AssertionError, match="we are fine"):
dreload(B, exclude=["A"])
assert len(modules_reloading) == 0
assert not A.ok
# Test that A is reloaded.
obj = A.Object()
A.ok = False
dreload(B)
assert A.ok
assert isinstance(obj, A.Object) is False
def test_not_module():
pytest.raises(TypeError, dreload, "modulename")
def test_not_in_sys_modules():
fake_module = types.ModuleType("fake_module")
with pytest.raises(ImportError, match="not in sys.modules"):
dreload(fake_module)
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